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doc: document deprecation of buildGoPackage

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Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
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Paul Meyer 2024-07-21 11:58:03 +02:00
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doc/languages-frameworks/go.section.md
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@ -66,6 +66,25 @@ The following is an example expression using `buildGoModule`:
The function `buildGoPackage` builds legacy Go programs, not supporting Go modules.
::: {.warning}
`buildGoPackage` is deprecated and will be removed for the 25.05 release.
:::
### Migrating from `buildGoPackage` to `buildGoModule` {#buildGoPackage-migration}
Go modules, released 6y ago, are now widely adopted in the ecosystem.
Most upstream projects are using Go modules, and the tooling previously used for dependency management in Go is mostly deprecated, archived or at least unmaintained at this point.
In case a project doesn't have external dependencies or dependencies are vendored in a way understood by `go mod init`, migration can be done with a few changes in the package.
- Switch the builder from `buildGoPackage` to `buildGoModule`
- Remove `goPackagePath` and other attributes specific to `buildGoPackage`
- Set `vendorHash = null;`
- Run `go mod init <module name>` in `postPatch`
In case the package has external dependencies that aren't vendored or the build setup is more complex the upstream source might need to be patched.
Examples for the migration can be found in the [issue tracking migration withing nixpkgs](https://github.com/NixOS/nixpkgs/issues/318069).
### Example for `buildGoPackage` {#example-for-buildgopackage}
In the following is an example expression using `buildGoPackage`, the following arguments are of special significance to the function: